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42,904
RESULTS

Media Type
34,101
texts
4,664
audio
2,268
movies
1,187
images
458
concerts
155
data
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Topics & Subjects
15,702
NASA Technical Reports Server (NTRS)
8,942
NSA
7,619
National Security Agency
7,619
William F. Friedman
7,618
Cryptography
7,618
Friedman
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Collection
15,702
NASA Network Resource and Training Site
7,626
National Security Internet Archive (NSIA)
7,617
National Security Agency (NSA) Archive
7,617
William F. Friedman NSA Collection
4,089
Community Audio
3,475
Education Resources Information Center (ERIC) Archive
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Creator
15,702
nasa technical reports server (ntrs)
7,618
william f. friedman
3,524
eric
2,004
defense technical information center
413
grateful dead
334
lf
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Language
33,142
English
288
Swedish
274
German
252
Spanish
185
French
138
Arabic
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